I would like help finding the correct IR sensor for my project. I am creating a pneumatic can crusher that is controlled by a solenoid operated valve. I am going to have to modes the can crusher can be in, auto, or manual. When in auto mode before the solenoid operated the cylinder a IR sensor will need to be triped by a can sliding down into the chamber. I already have a couple time delay relays to use, I just need to find a sensor that will work. I will need it to supply a 24VDC signal when it is triggered, and go away when the can is past it. It will be mounted to sense movement through a small hole in 3" exhaust tubing. So i am not aware of all the different types of sensors but i think i would either need one that shoots a beam to another sensor and when broken it activated or a sensor that detects motion. Thank you for your time and ideas!!